Chap 8: Nervous System (Transes)

Question 1

Brain and spinal cord

Answer 1

CNS

Question 2

All the nervous tissue outside the CNS, including nerves and ganglia.

Answer 2

PNS

Question 3

also known as
afferent division; conducts action
potentials from sensory receptors to
the CNS

Answer 3

Sensory division

Question 4

neurons that
transmit action potentials from the
periphery to the CNS

Answer 4

Sensory neurons

Question 5

also known as
efferent division; PNS conducts
action potentials from the CNS to
effector organs, such as muscles and
glands

Answer 5

Motor division:

Question 6

neurons that
transmit action potentials from the
CNS toward the periphery

Answer 6

Motor neurons

Question 7

Transmits
action potentials from the CNS to cardiac
muscle, smooth muscle, and glands

Answer 7

Autonomic nervous system:

Question 7

transmits action
potentials from the CNS to skeletal muscles

Answer 7

Somatic nervous system

Question 8

unique
subdivision of the peripheral nervous
system

Answer 8

Enteric nervous system

Question 9

The two types of cells that make up the
nervous system are

Answer 9

neurons and glial cells

Question 10

Also known as nerve cells

Answer 10

NEURONS

Question 11

contains single nucleus;
source of information for gene
expression

Answer 11

Cell Body

Question 12

receive information from
other neurons or from sensory
receptors and transmit the
information toward the neuron cell
body

Answer 12

Dendrites

Question 13

formed
when axon remain
unbranched

Answer 13

Collateral axons

Question 13

area where the
axon leaves the neuron cell
body

Answer 13

Axon hillock

Question 14

The supportive cells of the CNS and PNS,
meaning these cells do not conduct action
potentials

Answer 14

GLIAL CELLS

Question 15

closed until
opened by specific signals

Answer 15

Gated channels

Question 16

cell membrane with
uneven distribution of charge

Answer 16

Polarized

Question 17

always open; ions
can “leak” across the membrane
down their concentration gradient

Answer 17

Leak channels

Question 18

opened by neurotransmitters or other
chemicals

Answer 18

Chemically gated channels

Question 19

opened by
a change in membrane potential

Answer 19

Voltage-gated channels

Question 20

where action potential starts; triggers nerve impulse

Answer 20

Axon hillock

Question 21

where neurotransmitters are released

Answer 21

terminal boutons

Question 22

where saltatory conduction occurs

Answer 22

nodes of ranvier

Question 23

non-conducting part

Answer 23

myelin sheath

Question 24

an electrical signal that causes a response to another neuron/target cell

Answer 24

nerve impulse

Question 25

group of neurons outside the CNS

Answer 25

Ganglion

Question 26

grp of neurons within the CNS

Answer 26

Nucleus

Question 27

group of nerve fibers (axons) outside CNS

Answer 27

Nerve

Question 28

group of NF w/ in CNS

Answer 28

Tract

Question 29

The junction where the axon of one
neuron interacts with another neuron
or with cells of an effector organ, such
as a muscle or gland

Answer 29

SYNAPSE

Question 30

end of
the axon

Answer 30

Presynaptic terminal

Question 31

membrane of the dendrite or
effector cell

Answer 31

Postsynaptic membrane

Question 32

space
separating the presynaptic
and postsynaptic membranes

Answer 32

Synaptic cleft

Question 33

neurotransmitters are released from the presynaptic membrane that bind to receptor proteints in the postsynaptic membrane to excite the neuron

Answer 33

Chemical synapse

Question 34

also known as neuromuscular junction

Answer 34

chemical synapse

Question 35

action potentials are transmitted from one smooth muscle fiber to the next visceral smooth muscle

Answer 35

electrical synapse

Question 36

axon terminal - dendrite

Answer 36

Axodendritic

Question 37

axon terminal - cell body

Answer 37

axosomatic

Question 38

axon terminal - axon terminal

Answer 38

axoaxonica

Question 39

dendrite - dentrite

Answer 39

dendrodendritic